# -*- coding: utf-8 -*-

#This file is part of pyLot library.
#
# pyLot is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# pyLot is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with pyLot.  If not, see <http://www.gnu.org/licenses/>.

__author__ = u'Pierre Puiseux, Guillaume Baty'
__copyright__ = u"Copyright 2011-2012 (C) andheo, Université de Pau et des Pays de l'Adour"
__credits__ = [u'Pierre Puiseux', u'Guillaume Baty']
__license__ = "GNU Lesser General Public License"

from _pylot.minimal.system import ENCODING
import quantities as pq

"UNITS[u'µm'] -> UnitLength('micrometer', 0.001 * mm, 'um')"
UNITS = {}

for qty_id in dir(pq) :
  qty = getattr(pq, qty_id)
  if isinstance(qty, pq.UnitQuantity) :
    UNITS[qty.name.decode(ENCODING)] = qty
    if hasattr(qty, 'u_symbol'):
      ustr = qty.u_symbol
      if isinstance(ustr, unicode):
        UNITS[ustr] = qty
      elif isinstance(ustr, str):
        UNITS[ustr.decode(ENCODING)] = qty

"""
Forgotten units
"""

UNITS[u'dm'] = 1 * pq.deci * pq.meter
UNITS[u'decimeter'] = UNITS[u'decimetre'] = UNITS[u'dm']

"""
Convenient aliases
"""

UNITS[u'nautical mile'] = UNITS[u'nautical_mile']

"""
Tricky units
"""

#U+03BC GREEK SMALL LETTER MU -> U+00B5 MICRO SIGN
UNITS[u'μm'] = UNITS[u'µm'] = pq.micrometre



